Re: [RFC] mips gdb fails to detect o32

[Andrew Cagney <ac131313@ges.redhat.com>]

> On Wed, Aug 07, 2002 at 05:23:43PM -0700, Michael Snyder wrote:
> 
>> Well, I just discovered that gdb is failing to detect the o32 abi
>> when debugging the output of the native Irix compiler.  This patch
>> seems to help.
>> 
>> The idea here is, if it's not n32, then if it is MIPS_ARCH_2,
>> then it must be o32.  However, I've no idea if that's right --
>> I just know it works so far as I've been able to test it.
>> 
>> Unfortunately, I haven't been able to test it against EABI, 
>> and I haven't been able to test it against gcc, because gcc
>> doesn't generate o32.
> 
> 
> GCC does generate O32.  GNU binutils won't use the ARCH/ABI bits in the
> ELF header in a lot of cases, though; and it emits a better way to
> identify the ABI.
> 
> I don't think keying off MIPS II makes a heck of a lot of sense here...
> depending on what SGI's tools put out you might want to default to O32
> if no ABI tag bits are present, but that's a little shadier.

Um, won't the final:

	if (mips_abi == MIPS_ABI_UNKNOWN)
	  mips_abi = MIPS_ABI_032;

kick in?

Andrew